EVACUATION GUIDANCE SYSTEM FOR PEOPLE IN PUBLIC PLACES
The evacuation guidance system for people in public places provided by the present invention includes the following components: an acquisition…
IP Market Hub
The evacuation guidance system for people in public places provided by the present invention includes the following components: an acquisition…
In a bid to solve the above technical problems, the invention provides a large-size microcrystalline ceramic burner, aiming at solving…
Experts have recommended 30 minutes or less per day as the maximum time you should spend on social media.